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Under these conditions, a vacuum is indicated on the low pressure side.
在这些情况下，说明低压端存在一个真空状态。
youdao
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Automatic pump only has entrance side, and no "Vacuum" side.
自动泵没有“真空”侧，只有入口侧。
youdao
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Automatic pump only has entrance side, and no "Vacuum" side.
自动泵没有“真空”侧，只有入口侧。
youdao